With the rapid development of wind power industry in Xinjiang, the 1.5 MW wind power generating unit has a large use base. After running for a period of time, the problems of maintenance and repair after its failure appear on paper.This article in view of the xinjiang region of the 1.5 MW wind turbine variable flow system, electric control system, generator system, variable propeller system, yaw system, hydraulic system and other aspects of the fault, has carried on the detailed statistics and analysis, combining with the actual production situation puts forward the solutions to these faults daily operations, and put forward combined with preventive maintenance operations strategy. Correct operation and maintenance is the guarantee of improving productivity. Finally, the paper points out that intelligent operation and maintenance is the future development trend of wind power operation and maintenance, which can effectively promote the improvement of wind farm operation and maintenance management level.